nix: add printing, browsers, update

nix/configuration.nix

@@ -91,7 +91,12 @@
   console.keyMap = "de";
 
   # Enable CUPS to print documents.
+  # hardware.sane.enable = true;
   services.printing.enable = true;
+  services.printing.browsing = true;
+  # services.avahi.enable = true;
+  # services.avahi.nssmdns = true;
+  services.printing.drivers = with pkgs; [ gutenprint ];
 
   # Enable sound with pipewire.
   sound.enable = true;
@@ -124,7 +129,7 @@
     packages = with pkgs; [
       firefox
       thunderbird
-      unstable.nextcloud-client
+      nextcloud-client
       qalculate-gtk
       schildichat-desktop
       tdesktop
@@ -135,6 +140,8 @@
       audacity
       gnome.cheese
       unstable.zoom-us
+      qutebrowser
+      evince
     ];
   };
 
@@ -164,10 +171,11 @@
   # List packages installed in system profile. To search, run:
   # $ nix search wget
   environment.systemPackages = with pkgs; [
-    tldr
+    tealdeer
     gcolor2 # gcolor3 does not work
     vim
     neovim
+    # cups
     wget
     gparted
     emacs

nix/flake.lock

@@ -22,11 +22,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1678978893,
-        "narHash": "sha256-fJTi5rqDGmb5AnfcZBVLsXJ5jkEW8h16nkRqD1/Ll6Y=",
+        "lastModified": 1681398073,
+        "narHash": "sha256-EOctfPaRaJGi9qrhWRG4Zjbnc0Rbg51uOY0HOaBftp0=",
         "owner": "doronbehar",
         "repo": "nix-matlab",
-        "rev": "3775c69ddda960114131e6492484c025ae3873f3",
+        "rev": "5d5b91151627c86d8a6f2bfa846fd0ccf02edb72",
         "type": "gitlab"
       },
       "original": {
@@ -37,11 +37,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1678875422,
-        "narHash": "sha256-T3o6NcQPwXjxJMn2shz86Chch4ljXgZn746c2caGxd8=",
+        "lastModified": 1681358109,
+        "narHash": "sha256-eKyxW4OohHQx9Urxi7TQlFBTDWII+F+x2hklDOQPB50=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "126f49a01de5b7e35a43fd43f891ecf6d3a51459",
+        "rev": "96ba1c52e54e74c3197f4d43026b3f3d92e83ff9",
         "type": "github"
       },
       "original": {
@@ -51,11 +51,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1678898370,
-        "narHash": "sha256-xTICr1j+uat5hk9FyuPOFGxpWHdJRibwZC+ATi0RbtE=",
+        "lastModified": 1681303793,
+        "narHash": "sha256-JEdQHsYuCfRL2PICHlOiH/2ue3DwoxUX7DJ6zZxZXFk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "ac718d02867a84b42522a0ece52d841188208f2c",
+        "rev": "fe2ecaf706a5907b5e54d979fbde4924d84b65fc",
         "type": "github"
       },
       "original": {
@@ -66,11 +66,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1678872516,
-        "narHash": "sha256-/E1YwtMtFAu2KUQKV/1+KFuReYPANM2Rzehk84VxVoc=",
+        "lastModified": 1681269223,
+        "narHash": "sha256-i6OeI2f7qGvmLfD07l1Az5iBL+bFeP0RHixisWtpUGo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9b8e5abb18324c7fe9f07cb100c3cd4a29cda8b8",
+        "rev": "87edbd74246ccdfa64503f334ed86fa04010bab9",
         "type": "github"
       },
       "original": {